I should have included more info ( maybe I'll try a photo ...oh wow!) It is MH mounted, similar in concept to the Roadmaster Falcon 2 that I have now ( telescoping arms, etc). But as said it is made of aluminum with the legs about 3" in diameter. The base plate adapter parts are in fact Roadmaster just like the ones I use with mine. I just wanted to make sure there weren't some horror stories out there about these things before I give it to a friend that could use it ... esp at this attractive price !
Roger & Gail
Golden Retriever "Captain", Maltese "Annie" Labradoodle “Piper”
2000 Pace Arrow Vision 36B